Ant Control on a Golf Course, 1990

Four insecticides were evaluated in 2 trials as area sprays for control of ants on a fairway. Treatment areas ranged in size from 46 to 130 m2. Treatments were not replicated. Sampling consisted of counting all active ant colonies within the confines of a M> m2 wire hoop randomly tossed into the treated area; counts were made in 3 areas/treatment each date. Sprays were applied with a 1.5 gal compression sprayer at the rate of 2 liters/9.3 m2. Treated areas were not irrigated after treatment. Treated areas were only sparcely covered with grass and there was no thatch layer. Soil type is sand consisting of 90.0% sand, 6.4% silt, and 3.6% clay. Cumulative precipitation during Trial 1 was 0, 0, 0.40, 0.40, 0.65, and 0.75 inches at 1, 3, 6, 13, and 20 DAT, respectively; for Trial 2, precipitation was 0, 0, and 1.4 inches at 3, 6, and 20 DAT, respectively.